That's how probability works.

If someone rolls a 10-sided die and they get to punch my face each time they roll a 10, there's a 90% chance on each roll that I win. But it's entirely feasible that I could be slugged six rolls in a row.

It's seems like an incredibly unlikely outcome, just like your gathering example, but the game (and hopefully the universe) is not looking at your past rolls to determine the next. 1/10 chance is always a 1/10 chance on each swing.